D-link DIR-655 User Manual download pdf (Page 44)

44D-Link DIR-655 User Manual

Section 3 - Conﬁguration

VPN Passthrough

RTSP

H.323

SIP (VoIP)

MMS

Application Level Gateway (ALG) Conﬁguration

Here you can enable or disable ALG’s. Some protocols and applications require special handling of the IP payload to

make them work with network address translation (NAT). Each ALG provides special handling for a speciﬁc protocol

or application. A number of ALGs for common applications are enabled by default.

Allows multiple machines on the LAN to connect to their corporate network using PPTP protocol.

Allows multiple VPN clients to connect to their corporate network using IPSec. Some VPN clients support traversal of IPSec

through NAT. This ALG may interfere with the operation of such VPN clients. If you are having trouble connecting with your

corporate network, try turning this ALG off. Please check with the system adminstrator of your corporate network whether

your VPN client supports NAT traversal.

Allows applications that use Real Time Streaming Protocol to receive streaming media from the internet. QuickTime and

Real Player are some of the common applications using this protocol.

Allows all of the Windows/MSN Messenger functions to work properly through the router.

Allows FTP clients and servers to transfer data across NAT. Refer to the Advanced > Virtual Server page if you want to

host an FTP server.

Allows Microsoft NetMeeting clients to communicate across NAT. Note that if you want your buddies to call you, you should

also set up a virtual server for NetMeeting. Refer to the Advanced > Virtual Server page for information on how to set up

a virtual server.

Allows devices and applications using VoIP (Voice over IP) to communicate across NAT. Some VoIP applications and devices

have the ability to discover NAT devices and work around them. This ALG may interfere with the operation of such devices.

If you are having trouble making VoIP calls, try turning this ALG off.

Allows Ethernet network adapters with Wake-On-LAN (WOL) to function.

Allows Windows Media Player, using MMS protocol, to receive streaming media from the Internet.

PPTP:

IPSEC (VPN):

RTSP:

MSN Messenger:

FTP:

H.323

(Netmeeting):

SIP:

Wake-On-LAN:

MMS:

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D-link DIR-655 User Manual Page 44